Functions Worksheet - Big Ideas Math Prealgebra: A Florida Standards Curriculum Teaching Edition Page 44
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Chapter Test
Test Practice
Determine whether the relation is a function.
1.
Input
Output
2.
Input
Output
2
9
− 3
1
4
− 1
10
3
6
1
11
5
8
3
7
9
Graph the function.
3. y = x + 8
4. y = 1 − 3x
5. y = x − 4
6. Use the graph to write a linear
7. Does the table represent a linear
function that relates y to x.
or nonlinear function? Explain.
y
x
0
2
4
6
2
1
−16
−8
y
8
0
4
3
2
1
1
2
x
1
2
3
4
8.
WATER SKI
The table shows the number
Minutes, x
1
2
3
4
5
of meters a water skier travels in x minutes.
Meters, y
600 1200 1800 2400 3000
a. Write a function that relates x to y.
b. Graph the linear function.
c. At this rate, how many kilometers would the water skier travel in 12 minutes?
9.
STOCKS
The graphs show the prices
Stock A
Stock B
of two stocks during one day.
a. Describe the prices of each stock.
b. Make three comparisons from
the graphs.
Time
Time
10.
RACE
You are competing in a race. You begin the race by increasing your
speed at a constant rate. You then run at a constant speed until you get a
cramp and have to stop. You wait until your cramp goes away before you
start gradually increasing your speed again at a constant rate. Sketch a
graph that represents the situation.
282
Chapter 6
Functions
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